This site was built to compliment the existing NetSuite Professionals Slack Community by adding a means for members to easily find answers to common questions and to create a searchable database of those questions and answers.

NetSuite Professionals

Hi all! What determines the default account selected on a Vendor Bill Payment form?

I think you can find this option, under the vendor record**

Also, If you have specific requirements, you could always do a simple workflow to update your account based on specific requirements.